SpeedZ28

Good afternoon. I have recently installed a zex wet kit on my 97 Z28 Jasper LT1. Starting off with 100 shot. It seems to be working very well my 1/4 dropped from .97 to .00 and from 93mph to 113mph but, The transmission don't feel right when I'm on the juice. Like its not a firm shift and its thinking about shifting. Taking time to shift, like slipping into the gear like the tranny's slipping. Is this normal? Is my tranny screwed up? should I set the window switch to shut off sooner before read line. I'm thinking maybe because the engines making more vacuum its not responding right? IDK. Was hopin someone may have an answer. I do notice every once in a while (Started before I had N20) that I get a light on throwing code "Trans comp Slipping". I usually just turn the car off and on then reset the light and its fine. Just trying to give you as much info as possible.

Thank you for any input.
Speed

Moshbmx1

Whats the window switch set at compared to redline? I have mine set from 3k to 5.9k I believe and I dont notice any problems when shifting. Have you had any transmission work done in the past? Built internals?

SpeedZ28

I set from 3k to 5.5 and redline is 6k No tranny work ever done.

slomarao

you need a window switch.

SpeedZ28

LOL....Ok I'll get one.

Moshbmx1

Closer reading would have prevented that post but anyway

I did some searching of the code and it looks like it has the do with the valve body "hole" not being big enough for the pressure. Search google or wherever for the code and you will get some answers. Spraying the juice puts a little more stress on the trans We had to rebuilt my trans 4 times before we got it to work right and shift very firmly while under spray and keep all of the clutches and planetarys in place

Stroked96Bowtie

Yep that was going to be my question, what trans do you have and what works been done to it to be able support spray? Mine kicked the can before I got the chance to put spray on it...so I just did a conversion.

SpeedZ28

LOL Mosh. For real right. I set my Window switch to the same as yours....5.9 and it was much better. I think it didn't like backing off the vacuum so much before the shift point. It shifts pretty well now. I can actually feel the n20 back off just before the shift. I think I will try 6k. But I agree, I can see I will need some tranny work..lol. Its the stock tranny never been worked on. I believe its the 700R4. The New jasper engine only has 25k but the tranny is the factory with 99k.

Thank you very much for the input.

Moshbmx1

Sweet man, glad you got it worked out! Just dont get greedy with it

slomarao

see, now you ve got it.

lol

Should of read deeper.

SpeedZ28

LMAO

Thanks for the input anyway.

justahoe

thats what i was gonna say...use window switch to shut off before the shifts.... our trannys wont take spraying through the shifts very long before needing a rebuild

Moshbmx1

He had a window switch from the beginning....that was never the issue

SpeedZ28

LOL...omg. Yes I have a switch. Thanks mosh lol. I turned the switch up to 6k as I was TALKING about doing and its better but I can see it will be an issue soon for its still shifts a little funny but much better then when i started this thread. Im going to try the b&m shift plus till the tranny actually goes lol
http://shopping.netsuite.com/s.nl/c....&category=6190
I took it to the track and the best run on the 100 shot was 13.56 @ 105 and it didnt shift great going into drive on that run lol. The engine is stock other then the nos and the cai, so i dont know if thats good or not, but it sure was fun

Thanks for the input.